Home / 3,160.58-4,360.38-1,979.60

Finding the Fourth Proportional to 3,160.58, 4,360.38 and 1,979.60

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Solution

The fourth proportional to 3,160.58, 4,360.38 and 1,979.60 is: 2,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.58 : 4,360.38 = 1,979.60 : x
  2. Step 2: Convert to fraction form
    3,160.58/4,360.38 = 1,979.60/x
  3. Step 3: Cross multiply
    3,160.58x = 4,360.38 × 1,979.60
  4. Step 4: Simplify right side
    3,160.58x = 8,631,808.25
  5. Step 5: Solve for x
    x = 8,631,808.25/3,160.58
  6. Step 6: Final answer
    x = 2,731.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.